/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import com.sun.org.apache.xerces.internal.impl.dv.util.HexBin;
import java.io.IOException;

import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.swing.JOptionPane;
import model.dao.KhachHangDAO;
import model.pojo.KhachHang;

/**
 *
 * @author Suma
 */
@WebServlet(name = "DangKy", urlPatterns = {"/DangKy.do"})
public class DangKy extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            response.setContentType("text/html;charset=UTF-8");
            HttpSession session = request.getSession();
            String action = request.getParameter("Action");
            if (action != null) {
                if (action.equals("Nap")) {
                    String view = "index.jsp";
                    request.setAttribute("page", "DangKy");
                    RequestDispatcher rd = request.getRequestDispatcher(view);
                    rd.forward(request, response);
                    return;
                }
            }

            String email = "";
            String matKhau = "";
            String hoVaTen = "";
            String soDienThoai = "";
            String diaChi = "";
            int tinhThanhPho = 0;
            String[] dsttp = {"Hà Nội", "Vĩnh Long", "Sóc Trăng", "Cà Mau", "Cần Thơ", "Tp Hồ Chí Minh", "Tiền Giang", "Đồng Nai", "Đà Nẵng", "Bạc Liêu"};
            String ttp = "";
            boolean emailtontai = false;
            email = request.getParameter("email");
            if (request.getParameter("email") != null) {
                email = request.getParameter("email");
                emailtontai = KhachHangDAO.kiemtraEmail(email);
                if (emailtontai) {
                    request.setAttribute("LoiDangKy", "Email này đã được đăng ký!");
                    String view = "index.jsp";
                    request.setAttribute("page", "DangKy");
                    RequestDispatcher rd = request.getRequestDispatcher(view);
                    rd.forward(request, response);
                } else {
                    matKhau = request.getParameter("matKhau");
                    // Mã hóa MD5 cho mật khẩu 
                    MessageDigest messageDigest = MessageDigest.getInstance("MD5");
                    messageDigest.reset();
                    messageDigest.update(matKhau.getBytes(Charset.forName("UTF-8")));
                    byte[] resultByte = messageDigest.digest();
                    matKhau = new String(HexBin.encode(resultByte));
                    hoVaTen = request.getParameter("hoVaTen");
                    soDienThoai = request.getParameter("soDienThoai");
                    diaChi = request.getParameter("diaChi");
                    tinhThanhPho = Integer.parseInt(request.getParameter("tinhThanhPho"));
                    ttp = dsttp[tinhThanhPho];
                    KhachHang kh;
                    kh = new KhachHang(KhachHangDAO.sinhMaKhachHang(), hoVaTen, email, soDienThoai, diaChi, ttp, 0, email, matKhau, new Date(), new Date(), 0);
                    KhachHangDAO khdao = new KhachHangDAO();
                    khdao.saveOrUpdate(kh);
                    String view = "index.jsp";
                    request.setAttribute("page", "DangKyThanhCong");
                    RequestDispatcher rd = request.getRequestDispatcher(view);
                    rd.forward(request, response);

                }
            }

        } catch (NoSuchAlgorithmException ex) {
            Logger.getLogger(DangNhap.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
